stephen la point



(No Model.)

s. POINT.

PUMP.

Patented Jan. 24

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INVENTOR WITNESSES ATTORNEYS.

N. PETERS: Pnmmha n mr. )Nalhinglnrn n, c.

UNITE STATES PATENT STEPHEN LA POINT, OF DERRICK CITY, PENNSYLVANIA.

PUMP.

v SPECIFICATION forming part of Letters Patent No. 33715960. dated January 24, 1888. r Application filed April raiser Serial No.234,539. (No modelJ.

To aZZ whom it may concern.-

Be it known that I, STEPHEN LA POINT, of

, Derrick Oity, in the. county of McKeau and State of Pennsylvania, have invented a new and useful Improvement in Pumps, of which the following is a specification.

7 My invention relates to improvements in pumps, the object being to provide means for securing the pump in place and for prevent,- lng the oil or water from running down in the well and washing'the sides thereof.

The invention consists of arms or spurs pivoted to the body portion of the pump, and adapted to be thrown out*iuto engagement with the sides of the well to secure the pump in position, and at the same time aflord ample room between the body portion and the sides of the well for the passage of gravel or sand, so that itwill not stickto the said body portion. It also consists in providing the pump-rod witha valve for allowing the water to be drawn out of the same when removing the pump from the well. V

The invention further consists in the novel combinations and arrangements of parts, as hereinafter fully described, and. pointed out in the claims. I A

Figure 1 is a vertical section of my improvement, showing the position the parts assume when raising the pump out of the well. 2 is a similar view showing the position the parts assume when in the well. Fig. 3 is a detail view, on an enlarged scale, ofthe casing and itsvalve attached to the pipe.

Similar letters of reference indicate corresponding parts in all the figures;

Referring to the drawings by letter, A.represents the body portion of the pump, having its lower ends screw-threaded to permit the necessary lengthof pipe. to beattached. -In

- the lower end of the body portion a valve, a, is arranged, and to the upper end thereof a ing-box E in the ippe'rend of the body portheopening. in the lower partof the casingI is closed by a plug, 43

Fig.

saryto raise the casing and sleeve by means of the pipe F, when the spurs or arms a will tion, and is connected to the pipeF by means of the coupling G. A valve, H, is arrangedin the coupling G, and on the lower edge of the said coupling are formed the lugs 01'' pro} jections g, which are adapted to enter corre:

' spondingly-shaped recesses eon the u pperface of stuffing-box E,to permit thestuffing-box to be screwed into position by means of the pipe F. To theupper part of the pipe F: and within the casing Gis secured a valve-casing,I. In the casing I is arranged the valve t,which is forced to its seat by the springi, -andis pro-, vided with'the stem i", which projects through 7 the casing, as clearly shown in the,drawings. v6 5 The casing I is provided with an opening, i -,communicating with the interior of the pipe F, and with the opening 2'' above the valveseat, opening into the casing .0. After the valve and springhave been inserted in place The operation is as follows: Ininserting the pump in the wellthe casing and conical sleeve I are elevated with respect to the body portion 7 5 V,

by means of the pipe F, so that the arms or spurs a. will not project beyond the said sleeve. I After the pump has beenlowered thespursor arms on the bodyportion willbe thrown outward'into engagement with the sides of the well by the descent ofthe sleeve, and thereby .fi rim ly hold the pump imposition.

To remove the pump, itwvill only'be necesbe drawn upward and disengaged from the sidesof the well. At the same time that the pump is being raised from the well the val-vo stem '5 of the valve Loomingin contact with the upper end ofthe casing O, .will open the saidvalve and allow the oil in the pipe Fto flows therefrom through the casingIinto the casing 0, thereby saving the oil in the pipe and pref venting it from running down the sides of the Welland washing the same. i

Having thus desoribedmy invention, what I .ly on the body portion and providedfwith,

claim, and desire to secure byLetters-Patentr -f openings through which the spurs or arms project, substantially as herein shown and described.

'2. In a pump, the combination, with abody portion and arms or spurs pivoted thereto, of an apertured and conicalsleeve fitting loosely on the body portion, a casing secured to the sleeve, and a pipe projecting through the casing, substantially as herein shown and described.

3. In a pump, the combination, withabody portion and a stuifing-box in its upper end having recesses in its upper face, of a plunger, a pipe, and a coupling for connecting the plunger and pipe, having lugs on its lower face adapted to engage the recesses of the stufiing-box, substantially as herein shown and described.

4. In a pump, the combination, with a hollow pump-rod and a casing surrounding the same, of a valve'casing secured to'the pumprod and having apassage communicating with the bore of said rod, a valve normally closing said passage, but clearing the passage in the upward movement of the rod, substantially 25 as set forth.

5. In a pump, the combination, with astationary casing and a pipe adapted to be connected to the plunger, of a valve-casing secured to the pipe within the stationary casing 30 and communicating with the said pipe, and a spring-actuated valve in the casing provided with a stem projecting through the said casing, substantially as herein shown and described.

STEPHEN LA POINT. Witnesses:

L. DICKINSON, THOS. PoWERs. 

